<template lang="html">
<div>
  <div class="cropper-content">
    <div class="cropper">
      <vueCropper
        ref="cropper"
        :img="option.img"
        :outputSize="option.size"
        :outputType="option.outputType"
        :info="true"
        :full="option.full"
        :canMove="option.canMove"
        :canMoveBox="option.canMoveBox"
        :original="option.original"
        :autoCrop="option.autoCrop"
        :autoCropWidth="option.autoCropWidth"
        :autoCropHeight="option.autoCropHeight"
        :fixedBox="option.fixedBox"
        @realTime="realTime"
        @imgLoad="imgLoad"
      ></vueCropper>
    </div>
    <!--<div class="show-preview" :style="{'width': previews.w + 'px', 'height': previews.h + 'px',  'overflow': 'hidden', 'margin': '5px'}">-->
      <!--<div :style="previews.div" class="preview">-->
        <!--<img :src="previews.url" :style="previews.img">-->
      <!--</div>-->
    <!--</div>-->
  </div>

  <div class="footer-btn">
    <div class="scope-btn">
      <label class="btn" for="uploads">更换图片</label>
      <input type="file" id="uploads" style="position:absolute; clip:rect(0 0 0 0);" accept="image" @change="uploadImg($event, 1)">

      <button  @click="changeScale(1)">+</button>
      <button  @click="changeScale(-1)">-</button>
      <button  @click="rotateLeft">↺</button>
      <button  @click="rotateRight">↻</button>
    </div>

  </div>
  <div class="upload-btn">
      <button  @click="down('blob')">确定</button>
    </div>
  </div>
</template>

<script>
  import VueCropper from 'vue-cropper'
export default {
  data() {
    return {
      crap: false,
      previews: {},
      option: {
        img: 'http://www.yingla9.com/source/yl/cat.png',
        size: 1,
        full: false,//输出原图比例截图 props名full
        outputType: 'png',
        canMove: true,
        original: false,
        canMoveBox: true,
        autoCrop: true,
        autoCropWidth: window.screen.width,
        autoCropHeight: window.screen.width,
        fixedBox: true,
        downImg: '#',
      }
    };
    },
  methods: {
    changeScale(num) {
      num = num || 1
      this.$refs.cropper.changeScale(num)
    },
    rotateLeft() {
      this.$refs.cropper.rotateLeft()
    },
    rotateRight() {
      this.$refs.cropper.rotateRight()
    },
    finish(type) {
      // 输出 //
      var test = window.open('about:blank')
      test.document.body.innerHTML = '图片生成中..'
      if (type === 'blob') {
        this.$refs.cropper.getCropBlob((data) => {
          var img = window.URL.createObjectURL(data)
          this.model = true
          this.modelSrc = img
        })
      } else {
        this.$refs.cropper.getCropData((data) => {
          this.model = true
          this.modelSrc = data
        })
      }
    },

    // 实时预览函数
    realTime(data) {
      this.previews = data
    },
    //下载功能 改 确定
    down(type) {
      event.preventDefault()
      var aLink = document.createElement('a')
      aLink.download = 'author-img'
      // 输出
//      if (type === 'blob') {
//        this.$refs.cropper.getCropBlob((data) => {
//          console.log(data)
//          this.downImg = window.URL.createObjectURL(data)
////          aLink.download = this.downImg;
////          console.log(this.downImg)
////          aLink.href = window.URL.createObjectURL(data)
////          aLink.click()
//          this.$emit('closeCropper',false)
//        })
//      } else {
        this.$refs.cropper.getCropData((data) => {
          this.downImg = data
//          aLink.href = data
//          aLink.click()
          this.$emit('closeCropper',false)
        })
//      }
    },

    uploadImg(e, num) {
      //上传图片 // this.option.img
      var file = e.target.files[0];
      console.log(file);
      //--------------图片压缩 start----------------

      //--------------图片压缩 end----------------

      if (!/\.(gif|jpg|jpeg|png|bmp|GIF|JPG|PNG)$/.test(e.target.value)) {
        alert('图片类型必须是.gif,jpeg,jpg,png,bmp中的一种')
        return false
      }
      var reader = new FileReader()
      reader.onload = (e) => {
        let data
        if (typeof e.target.result === 'object') {
          // 把Array Buffer转化为blob 如果是base64不需要
         // data = window.URL.createObjectURL(new Blob([e.target.result]))
        } else {
          data = e.target.result
        }
        if (num === 1) {
          this.option.img = data
        } else if (num === 2) {
          this.example2.img = data
        }
      }
      // 转化为base64 //
      reader.readAsDataURL(file)
      // 转化为blob
//      reader.readAsArrayBuffer(file)
    },
    imgLoad(msg) {
      console.log(msg)
    },
  },
components: {
  VueCropper
},


}
</script>
<style lang="less">
  .cropper-content{
    width:100%;
    /*display: flex;*/
    /*display: -webkit-flex;*/
    /*justify-content: flex-end;*/
    /*-webkit-justify-content: flex-end;*/
  .cropper{
    width: 100%;
    height: 400px;
  }
  .show-preview{
    flex: 1;
    -webkit-flex: 1;
    display: flex;
    display: -webkit-flex;
    justify-content: center;
    -webkit-justify-content: center;
  .preview{
    overflow: hidden;
    border-radius: 50%;
    border:1px solid #cccccc;
    background: #cccccc;
    margin-left: 40px;
  }
  }
  }
  .footer-btn{
    margin-top: 30px;
    display: flex;
    display: -webkit-flex;
    justify-content: flex-end;
    -webkit-justify-content: flex-end;
  .scope-btn{
    width: 100%;
    padding:0 2.5%;
    display: flex;
    display: -webkit-flex;
    justify-content: space-between;
    -webkit-justify-content: space-between;
  }

  .btn {
    outline: none;
    display: inline-block;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    -webkit-appearance: none;
    text-align: center;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    outline: 0;
    margin: 0;
    -webkit-transition: .1s;
    transition: .1s;
    font-weight: 500;
    padding: 8px 15px;
    font-size: 12px;
    border-radius: 3px;
    color: #fff;
    background-color: #67c23a;
    border-color: #67c23a;
  }
    button{
      border:none;
      background: #fff;
    }
  }
  .upload-btn{
    width:100%;
    padding:5% 2.5%;
    /*flex: 1;*/
    /*-webkit-flex: 1;*/
    /*display: flex;*/
    /*display: -webkit-flex;*/
    /*justify-content: center;*/
    /*-webkit-justify-content: center;*/
    button{
      width:100%;
      height:2rem;
      line-height: 2rem;
      text-align: center;
      border:none;
      background: #d44242;
      color:#fff;
      border-radius:4px;
    }
  }
</style>
